Home / 9,678.96-13,364.49-7,437.30

Finding the Fourth Proportional to 9,678.96, 13,364.49 and 7,437.30

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Solution

The fourth proportional to 9,678.96, 13,364.49 and 7,437.30 is: 10,269.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,678.96 : 13,364.49 = 7,437.30 : x
  2. Step 2: Convert to fraction form
    9,678.96/13,364.49 = 7,437.30/x
  3. Step 3: Cross multiply
    9,678.96x = 13,364.49 × 7,437.30
  4. Step 4: Simplify right side
    9,678.96x = 99,395,721.48
  5. Step 5: Solve for x
    x = 99,395,721.48/9,678.96
  6. Step 6: Final answer
    x = 10,269.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.